baber/WOPTO huggingface dataset:
Patent GB-990818-A (GB)
Title: Improvements in or relating to boron nitride
IPC: C22C32/00
Filed: 1961-08-17
Abstract: <PICT:0990818/C1/1> A coherent compact of joined crystals of the cubic form of boron nitride is prepared by subjecting crystals of cubic boron nitride to a pressure of at least 75,000 atmospheres at a temperature of 1200-2400 DEG  C. in a high temperature high pressure apparatus for at least 2 minutes.  The apparatus (see Fig. 1) has a pair of punches 11 and 111 and a die 12 which has an aperture 13 to receive a reaction vessel 14 having a hollow electrically non-conductive cylinder 15 and concentrically positioned therein is an electrically conductive tube 16 containing specimen material 17. The ends are closed by a pair of electrically conductive discs 18 and end caps 19, each of which has a metal ring 20 encircling a non-conductive stone disc 21.  A pair of electrically and thermally insulating gaskets 23 and 24 and a metallic gasket 25 are situated between 11 and 111 and die 12.  The boron nitride is preferably finer than 20 mesh and may include magnesium, or at least one of the alkali metals, alkaline earth metals, lead or antimony or tin, or nitrides of these metals as catalysts.  Minor quantities of: Al2O3, W, Zr, Re, Cr, Mn, Co, Mo, Ti, Ni, Cu and Be may be added as bonding agents. The compact may be mounted in a tool for cutting or grinding. Specifications 830,210, 830,743 and 860,499 are referred to.ALSO:<PICT:0990818/C6-C7/1> A coherent compact of joined crystals of the cubic form of boron nitride is prepared by subjecting crystals of cubic boron nitride to a pressure of at least 75,000 atmospheres at a temperature of 1200-2500 DEG C. in a high temperature high pressure apparatus for at least 2 minutes.  The apparatus (see Fig. 1) has a pair of punches 11 and 111 and a die 12 which has an aperture 13 to receive a reaction vessel 14 having a hollow electrically nonconductive cylinder 15 and concentrically positioned therein is an electrically conductive tube 16 containing specimen material 17.  The ends are closed by a pair of electrically conductive discs 18 and end caps 19 each of which has a metal ring 20 encircling a nonconductive stone disc 21. A pair of electrically and thermally insulating gaskets 23 and 24 and a metallic gasket 25 are situated between 11 and 111 and die 12.  The boron nitride is preferably finer than 20 mesh and may include magnesium, or at least one of the alkali metals, alkaline earth metals, lead or antimony or tin, or nitrides of these metals as catalysts.  Minor quantities of: Al2O3, W, Zr, Re, Cr, Mn, Co, Mo, Ti, Ni, Cu and Be may be added as bonding agents. The compact may be mounted in a tool for cutting or grinding. Specifications 830,210, 830,743 and 860,499 are referred to.
Patent GB-1005500-A (GB)
Title: A thermally insulated container for a liquefied gas
Inventor: JACKSON ROBERT GLOVER
IPC: F17C13/00
Filed: 1964-07-24
Abstract: 1,005,500. Storing liquefied gases. CONCH. INTERNATIONAL METHANE Ltd. July 24, 1964, No. 29753/64. Heading F4P. A container for storing liquefied gas comprises an impermeable outer wall 5 of heat insulating material, a permeable intermediate layer 6, and a lining 7 having a liquid permeability of no more than 10<SP>-3</SP> times the gas permeability of the intermediate layer. The liquefied gas which diffuses through the lining 7 collects in the intermediate layer 6 subsequently vaporizing, to escape through pipes 10 to a vent 9. The outer wall 5 is supported by the inner steel hull 3 of a double-hulled ship 1 having a layer of adhesive 4. The outer wall 5 may be constructed from balsa wood, quippo or a plurality of foamed plastic panels, e.g. polyvinyl chloride, polyurethane, polystyrene epoxy resin or polyethylene. Alternatively the outer wall may be formed from a core of balsa wood, cork board or calcium silicate sandwiched between a pair of plywood layers. The intermediate layer is formed of, e.g. polyurethane, P.V.C. or phenolic foam, perlite, glass wool, expanded aluminium or stainless steel, polytetrafluoroethylene, expanded polypropylene or foamed aluminium. The material for the lining may be, e.g. polymer films, glass fibre, aluminium, stainless steel, glass reinforced epoxy or polyurethane resins or alternatively copper or aluminium films sprayed on to the intermediate layer.
Patent GB-1517590-A (GB)
Title: Electronic recording apparatus
IPC: G07C5/08
Filed: 1976-07-16
Abstract: 1517590 Recording data JAEGER 16 July 1976 [17 July 1975] 29787/76 Heading G1J In apparatus for storing binary electrical signals representing the speed of a vehicle and the time which has elapsed since the last recording operation at predetermined distance intervals travelled by the vehicle and whenever the vehicle stops, signals I representing incremental distances travelled are applied to a divider 1 the output of which, denoting the coverage of said predetermined distance interval, is applied to a counter 3 to initiate the storing of signals representing speed and elapsed time. The signals are stored in a shift register 13, 14, the oldest signals being lost each time a new pair of speed and distance signals are entered, so that a record for the last N distance intervals, representing a predetermined cyclic distance is stored. Batteries maintain energization of the shift register when the main power supply is lost, e.g. due to an accident to the vehicle, so that the record is not lost. A display 18 shows the most recent value stored in the shift register. To read-out the other values, a switch 11 is moved to contacts 1 to connect the register parts 13, 14 in a loop. Then, each time a push-button 17 is pressed, the message at the end of the register is transferred to the head, and isdisplayed at 18, a counter 19 with a display 20 identifying the position of the message. The speed measurement is received as an analogue voltage E v  which is converted to a binary input to a parallelseries register 8 by a closed-loop system 3-6 driven by a clock 7. The register 8 also receives the elapsed time messages from counter 10. A further shift register 23, 24, Fig. 2, may be provided to store logic signals E s  representing various functions which change during progress of the (rail) vehicle, e.g. signal state, door closure, automatic control, brake actuation, and a measure of the distances at which these changes of state occur. This register has read-out arrangements similar to the register 13, 14.
Patent GB-786312-A (GB)
Title: A process for flushing substances such as pigments
IPC: C09C3/00
Filed: 1955-10-19
Abstract: Cyclohexylamines alkylated in the nucleus, or salts thereof with soap-forming carboxylic acids such as free fatty or resin acids are used as flushing adjuvants.  The hydrogen atoms on the nitrogen atom may also be substituted, preferably by short alkyl groups.  Pigments which may be flushed include ochre, red lead, brown or red iron oxides, Prussian blue, titanium oxide, cadmium brown, barium sulphate, calcium carbonate, zinc sulphide, aluminium hydrate and silica gel.  In examples: (1) damp Prussian blue is flushed into a mixture of dibutyl phthalate and castor oil using 4-amino-1-methyl-cyclohexane; (2) damp aluminium hydrate is worked into a linseed oil varnish using the same flushing adjuvant.
Patent GB-263992-A (GB)
Title: Improvements relating to tyre valves
IPC: F16K15/20
Filed: 1925-11-27
Abstract: 263,992. Selbach, M. G. Nov. 27, 1925. Tyre valves. - An inflating- valve of the type having an indiarubber sleeve 3 mounted on a plunger 1 provided with axial and transverse passages has the sleeve extended over a conical part 1<a> of the plunger and is held against a tapered seat formed in the end of the tubular casing 2<a>, by a combined retaining nut and pump nipple 4<a>. The retaining nut and nipple are preferably formed as an integral piece and engage a washer 5 arranged above a flange 1<b> on the plunger. The lower part of the stem is provided with a lefthanded thread to receive the clamping nut 7.
Patent GB-484573-A (GB)
Title: Improvements in seats
IPC: A47C1/04
Filed: 1936-11-05
Abstract: 484,573. Reversible seats. HILL, G., and HILL, L. Nov. 5, 1936, No. 30093. [Class 52 (ii)] A reversible seat frame having two seating surfaces is pivoted in the frame of a chair, settee &c. so that one of the two surfaces when turned into the upper position assumes a much higher level than the other. The seat frame A, provided with two upholstered surfaces H, E, is mounted in the frame B on pins C which are located in a plane nearer to one surface than to the other; the pins may if desired be mounted above the surface E on extended plates. The seat frame is retained in either position by means of spring-loaded bolts P which engage in holes L in the seat frame.
Patent GB-863243-A (GB)
Title: Improvements in or relating to acylphenothiazines
IPC: C07D417/06
Filed: 1959-09-03
Abstract: The invention comprises compounds of the general formula: <FORM:0863243/IV (b)/1> and their pharmaceutically acceptable nontoxic acid addition and quaternary ammonium salts (wherein R is a C1-6 alkyl radical; Alk is a C2-6 alkylene radical; and R1 and R11 are alike or unlike and are each a hydrogen atom or a C1-8 alkyl or hydroxyalkyl radical); and the preparation thereof by condensing a compound of the general formula:  <FORM:0863243/IV (b)/2> with at least one equivalent of a compound of the general formula: <FORM:0863243/IV (b)/3> (wherein one of the symbols X and Y is a hydrogen atom and the other a Halogen-Alk group) in the presence of at least an additional equivalent of base.  10- (3-Chloropropyl) - 2 - propionylphenthiazine is made from 2-propionylphenthiazine and 1-bromo-3-chloropropane.  10- (b -Chloroethyl)-2-[21-(21- methyl 11,31-dioxolanyl)]-phenthiazine is made from 2-[21-(21-methyl-11,31-dioxolanyl) ]-phenthiazine and 2-chloroethyl p-toluenesulphonate.  Piperidine-4-carboxamide hydroacetate is formed from piperidine-4-carboxamide and acetic acid. Pyridine-2-carboxamide is prepared by reacting ethyl pyridine-2-carboxylate with concentrated ammonium hydroxide, and is catalytically hydrogenated to piperidine-2-carboxamide. Similarly made are pyridine-4-(N,N-diethyl) carboxamide and piperidine-4-(N,N-diethyl) carboxamide.
Patent GB-673068-A (GB)
Title: Improvements in scales or balances for weighing
IPC: G01G1/18
Filed: 1948-11-22
Abstract: 673,068. Weighing apparatus. GOMES, J. C. A. R. DA C., and ALLER, P. Nov. 22,1948 [Nov. 21, 1947], No. 30257/48. Class 143 In a weighing scale having a commodity pan Pc and a pan Pp for receiving unit weights, a variable counterbalancing force, corresponding to fractional weights, is also applied to pan Pp, through a knife edge C, by a beam B which is supported on an adjustable fulcrum roller 15. This roller is secured to a guided rack bar 16 and is adjusted longitudinally of the beam by a pinion 17 secured to a spindle 18 which drives a weight indicating pointer over a circular scale (not shown). The graduations on this scale are non-linear and are more closely spaced for small loads then for large ones. This disadvantage is removed by using pan Pp for the commodity, loading pan Pc with a weight equal to the maximum counterbalancing force exterted by the bar and then balancing the load by reducing the force exerted by the bar. In a modification (not shown), instead of loose weights a second and heavier bar is provided to effect unit weight adjustment. This form of counterbalancing is stated to be applicable to a number of types of scale other than the Beranger balance shown.
Patent GB-1309765-A (GB)
Title: Separation assemblies for separating precipitation components from  a suspension
IPC: B01D21/00
Filed: 1970-06-23
Abstract: 1309765 Separating device PIELKENROODVINITEX NV 23 June 1970 [7 July 1969 5 Nov 1969] 30363/70 Heading B1D A device for separating solid components from a liquid suspension comprises a casing 2 containing a plurality of parallel flow passages 3, the separate being inclined to the horizontal so that the inlet end 7 which is immersed just below the surface of the suspension is below the outlet end 5 which is attached to a suction means, e.g. syphon 12. In use liquid is sucked away via the syphon and solid slides back into the suspension. The separator may suitably be mounted (Fig. 5) in a branch duct 23 leading at either end into a supply basin in which the suspension is caused, e.g. by rotating brushes to flow in the direction marked. The branch duct comprises an upward branch 27 leading from inlet 24 and a downward branch 28, in which the separator is placed, leading to outlet 25. A second suction line 29 may lead from the top of the branch to prevent accumulation of air or floating constituents. Flocculation or sedimentation agents may be added via 30, 31. The arrangement of the parallel flow channels in the separator is suitably such that the forward flow of liquid and the return flow of separated sediment are separated by baffles.
Patent GB-1433702-A (GB)
Title: Apparatus for treating tubular fabrics
IPC: D06C5/00
Filed: 1974-07-09
Abstract: 1433702 Finishing fabrics E I ARONOFF 9 July 1974 [5 Dec 1973] 30393/74 Heading D1S Apparatus for spreading a tubular knitted fabric, e.g. for untwisting fabric in rope form after scouring, comprises two pairs of opposed driven rollers 24a, 24b, 26a, 26b spaced apart in a common plane, a pair of rings 20, 22 between the driven rollers in the plane, brackets 51a, 51b holding the rings 20, 22 against the driven rollers and including idler wheels 50a, 52a, 50b, 52b which allow the rings 20, 22 to rotate about their centres 68a; 68b upon rotation of the driven rollers, each ring 20 or 22 including a leading arm 63a, or 63b and trailing arm 62a or 62b extending therefrom and adapted to pivot in the plane about the centre 68a or 68b and engage the inner surface of the fabric F. As shown, the rollers 24a, 24b, 26a, 26b are mounted on stub shafts 28a, 28b, 30a, 30b journalled within gear boxes 32, 34 mounted to slide on rods 38, 40. Rotation of a double screw member 42 by a handwheel 48 adjusts the distance between the gear boxes 32, 34 for different width fabric tubes F. The brackets 51a, 51b are provided with adjustment screws 53a, 53b. The idler wheels of each bracket, e.g. the wheels 50a, 52a, Fig. 5, engage flat faces 54a, 56a, of the V-shaped inner surface of the respective ring 20. The arms 62a, 63a and 62b, 63b are pivoted about stub shafts 68a, 68b on diametrical hubs 58, 60 on each ring 20, 22. idler wheels 70a, 70b, 72a, 72b are mounted on the arms 63a, 63b, 62a, 62b, respectively. After the fabric F passing from a container 18 has been spread and untwisted, it passes between a squeeze roll assembly 16 comprising a roller 78 and a roller 86 mounted between pivoting brackets 80b pivotable by a piston- and-cylinder arrangement 82b.
Patent GB-1109564-A (GB)
Title: Improvements in and relating to lost self-supporting formwork
IPC: A47F5/02
Filed: 1965-07-16
Abstract: 1,109,564. Cast concrete structures; shuttering. Y. ZEHNIE. 16 July, 1965 [31 July, 1964], No. 30416/65. Headings E1S and EIW. In a method of constructing a concrete structure, the permanent or removable shuttering employed is made of wood chips bonded together by a thermosetting agent. Preferably the weight of the shuttering is less than 10% of the desired weight of the structure. A number of forms of shuttering are described in which the shuttering is shaped to the contour of beam, joist and soffit formations of a suspended concrete floor. In other embodiments the shattering is in the form of a hollow body. In another embodiment shuttering components 28 and 29 are used in conjunction with further shuttering components 30, 31 of dimensions selected to provide a shuttering arrangement having overall dimensions which are appropriate to the height and spacing of girders 27 in the floor structure.
Patent GB-667698-A (GB)
Title: Improvements in and relating to frequency stabilized radio receiving systems
IPC: H04B1/26
Filed: 1949-11-28
Abstract: 667,698. Valve receiving and automatic gain circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 28, 1949 [Dec. 3, 1948], No. 30459/49. Class 40 (v). In a double superheterodyne receiver for frequency modulated waves in which the second local oscillation is obtained by mixing the oscillation from the first local oscillator with a harmonic of a stable oscillator to produce a stable final intermediate frequency, the output is fed to a frequency discriminator. Incoming signals of frequency CW are mixed in valve 2 with local oscillations of frequency LO from valve 5 to produce an intermediate frequency IF 1  = LO-CW. Harmonics of the crystal oscillator 11 are fed over transformer 16 to mixer 17 together with local oscillations supplied over the coupling capacitor 18, the transformer being given a bandwidth at least equal to the band over which the receiver is to tune. The output of mixer 17 is passed through a narrow band amplifier to pass a frequency IF 2 =LO-XL, where XL is the desired harmonic of the crystal frequency. The intermediate frequency is mixed in valve 30 with the second local oscillation IF 2  to give a final intermediate frequency IF 3  =IF 2 - IF 1 =CW-XL which is independent of the local oscillator frequency. The signal is then fed to a frequency discriminator 35 and audio amplifier 36. In a modification, Fig. 2 (not shown), the second local oscillation is obtained by beating the harmonics of the crystal frequency with the local oscillations in the first frequency changer 2, the following amplifier having a sufficient bandwidth to accommodate both intermediate and second local oscillation frequencies. Automatic gain control. An A.G.C. voltage is developed across a resistor 38 in the grid circuit of mixer 30 and is applied to the first intermediate frequency amplifier. Specification 643,902 is referred to.
Patent GB-414351-A (GB)
Title: Improvements in electric starting devices for internal combustion engines
Filed: 1932-10-31
Abstract: 414,351. Starting prime movers. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. Oct. 31, 1932, No. 30513. Convention date, Oct. 31, 1931. [Class 38 (iv).] The circuit of an electric starting motor for an internal-combustion engine is interrupted when the engine back-fires or rotates backwards. The pressure set up in the intake operates a diaphragm associated with a switch which causes the starting motor circuit to open. Three arrangements are described. As shown in Fig. 1, the starting circuit is closed by the switch 7 energizing a coil which closes a switch 5 in the circuit of the motor S.M. In series with the switch 7 is a switch comprising contacts 27, 28, Fig. 2, which are closed under normal conditions. The contact 27 is carried by a diaphragm 21 in a casing 17 in communication with the intake manifold 19 and so arranged that a pressure in the intake will separate the contacts. When the pressure is dissipated the contacts 27, 28 reclose. In a modification the diaphragm is dished so that the contacts remain open after actuation until restored by manual means including a plunger projecting from the casing. In a further modification, the contacts remain apart after actuation until restored by suction in the manifold and a manually operated press switch is connected in parallel with them in order that the starter may be rendered operative.
Patent GB-322594-A (GB)
Title: Improvements in and relating to furnace walls
IPC: F27D1/00
Filed: 1928-10-22
Abstract: 322,594. Nygaard, O. Oct. 22, 1928. Bricks and tiles, special shapes of.-An outer permanent furnace wall 10 has a number of supports 13 projecting from its inner surface and a spaced inner lining is built up of unbonded refractory brick units each comprising bricks 14, 16 suspended from the supports 13, and filler bricks 18, 20 loosely supported upon the suspended bricks, the joints being overlapped to prevent leakage of air from behind the lining. The sup-. ported bricks are in horizontal rows of pairs 14, 16 the bricks 14 having two rear side flanges 22, a bottom flange 23, a top flange 24 and two rear suspension lugs 25 adapted to fit over the supports 13. The bricks 16 are similar to the bricks 14 except that they have front side flanges 26 and shorter top and bottom flanges 24<1>, 23<1>. The top and bottom flanges of the bricks are bevelled. The rear side flanges of the bricks 14 underly the front side flanges of the bricks 16, and the filler bricks 18, 20 which also have bevelled top and bottom edges are placed between each pair of vertically adjacent bricks 14, 16, being retained in place by their outwardly inclined seatings and the bottom flanges 23, 23<1> of the bricks above them. The filler bricks have each a top front flange, the brick 18 having rear side flanges 33 while the brick 20 has front side flanges. No fireclay or other bonding is used, each unit being free to expand in all directions. Some of the bricks may be perforated at 35 to admit air to the furnace.
Patent GB-1118746-A (GB)
Title: Improvements in or relating to new methods of preparing 1-dehydro-9ªß,10ª‡-steroids
IPC: C07J7/00
Filed: 1965-07-19
Abstract: The invention comprises a method of preparing 1,2-dehydro-9b ,10a -steroids of the androstane and pregnane series by reaction of a 9b ,10a -steroid having a 3-keto group, a 4,5-double bond and two hydrogen atoms at the 2-position with 2,3-dichloro-5,6-dicyano-benzoquinone in an anhydrous or substantially anhydrous acid medium, followed by decomposition of the complex formed.  4,6-Bisdehydro-starting materials are prepared by 6,7-dehydrogenation with 2,3-dichloro-5,6-dicyano-benzoquinone. 4,17a  - Dimethyl - 17b  - hydroxy - 9b ,10a -androst-4-en-3-one is prepared by reaction of the 4-unsubstituted analogue with thiophenol and paraformaldehyde in triethanolamine to give the 4-phenylthiomethyl derivative, and heating this with deactivated Raney nickel.  4 - Ethyl - 17a  - methyl - 17b  - hydroxy - 9b , 10a -androst-4-en-3-one is prepared by reaction of the 4-unsubstituted analogue first with potassium in t-butanol and then with ethyl iodide.
Patent GB-183393-A (GB)
Title: Improvements relating to baking ovens
IPC: A21B1/14
Filed: 1921-11-16
Abstract: 183,393. Beanes, W. H. Nov. 16, 1921. Bakers' ovens.-A multiple-deck draw-plate baker's oven, heated by Perkins tubes f arranged both over and under the draw-plates c, is so constructed that the distances b between the drawplate and the roof, and d between the drawplates in consecutive ovens, are not less than 1 foot and 2 feet respectively. The brickwork e separating the two ovens a, a, serves as a heatstoring medium, and for the same purpose there are provided tubes h which contain water or other fluid but do not extend into the furnace g. Solid, liquid, or gaseous fuel may be used.
Patent GB-288925-A (GB)
Title: Improvements in piston packing
IPC: F16J9/08
Filed: 1927-11-15
Abstract: 288,925. Craig, R. K. Nov. 15, 1927. Piston packing.-A packing- ring B for the piston of a Diesel engine, which has lateral clearance in its groove in order to allow for expansion, is recessed to receive a split sealing ring C of triangular section. The outward pressure of the ring B can be adjusted by varying the width of the flange J, thus varying the area exposed to outwardly-acting fluid pressure.